Barcelona's signing of Karim Adeyemi has not only strengthened Hansi Flick's attack but also brought an end to one of Borussia Dortmund's most consistent transfer trends. According to the figures involved, Barcelona's Karim Adeyemi transfer is one of the few major Dortmund departures in recent years that has not resulted in a substantial financial windfall for the German club. Adeyemi transfer bucks Dortmund's transfer modelBorussia Dortmund signed Adeyemi from RB Salzburg in 2022 for €30 million, viewing the German international as another exciting young talent capable of developing into a world-class player. A look at Dortmund's blockbuster salesSome of Borussia Dortmund's most successful sales have involved Spain's two biggest clubs. Against that backdrop, the Adeyemi deal stands out as an exception rather than the rule.